When I was young I had many nightmares about alien abduction. They seemed very real. I have memories of strange things happening. (lights in the sky, something landing in the backyard, and others) but no one else remembers them so I assume they were also dreams.
My son (who also has AS) started talking when he was very young, He told us about some very odd dreams he had about things flying in through his bedroom window, and my favorite one. He said in his dream he got up and climbed up on our couch to look out the large living room window. Outside he seen a large glowing sphere ( "it looked like planet earth was floating outside the window") He said he ask the "planet" what it was and he said it responded by saying "ALL". He said he didn't hear it with his ears he heard it in his head.
He was 2 or 3 at the time and he still talks about the dream ( he is 7). He refers to it as "ALL out the window"
Strange stuff.